Microprocessors made of carbon nanotubes are launched

Britain's "Nature" magazine published a recent progress in computing science on the 28th: ​​The MIT team used more than 14,000 carbon nanotube transistors to create a 16-bit microprocessor and generated such a message. Its design and manufacturing methods overcome the previous challenges associated with carbon nanotubes and will bring a high-performance alternative to silicon in advanced microelectronic devices.

Silicon transistors used in electronic devices are reaching a critical point and cannot be effectively expanded to advance electronics. Carbon nanotubes are a potential alternative material that can be used to manufacture high-performance devices. They are also known as buckytubes. They are light in weight and have a special structure-mainly composed of several layers to dozens of layers of carbon atoms arranged in hexagons. Coaxial round tube. At present, carbon nanotubes have shown excellent mechanical and electrical properties, but their own defects and variability have limited the application of these miniature carbon atom cylinders in large-scale systems.

This time, MIT scientist Max Schulak and colleagues designed and constructed a carbon nanotube microprocessor to solve such problems. They used a peeling process to prevent the carbon nanotubes from polymerizing together to prevent the transistor from working properly. In addition, through fine circuit design, the number of metal-type carbon nanotubes instead of semiconductor-type carbon nanotubes is reduced. The presence of the latter does not affect the function of the circuit, thereby overcoming the problems related to carbon nanotube impurities.

The research team named the microprocessor "RV16X-NANO" and successfully executed a program in the test to generate the message: "Hello, world! I am RV16XNano, made of carbon nanotubes."

The researchers concluded that in view of the fact that the design and manufacture of this microprocessor adopts industry standards, this research indicates a promising direction for electronics beyond silicon. (Reporter Zhang Mengran)

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